This circuit is from an old documentation making use of a 3,579,645 MHz analog color television crystal. The audio amplifier supports the equivalent.
We found this circuit in a 1978 publication. The diodes can be 1N4002 or 1N4004 and the secondary of...
This sophisticated function generator circuit appeared in the September 1972 issue of Radio...
We found this circuit in an old QST magazine. The circuit is powered according to the thermostatic relay...